[extensions-web] update-info: return empty response in case of broken input

[Yuri Konotopov <ykonotopov src gnome org>]

commit e55626a7b015fc3616761481cf6599040601fbb7
Author: Yuri Konotopov <ykonotopov gnome org>
Date:   Thu Feb 9 18:48:31 2017 +0400

    update-info: return empty response in case of broken input

 sweettooth/extensions/views.py |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)
---
diff --git a/sweettooth/extensions/views.py b/sweettooth/extensions/views.py
index da37e0f..16bd1f9 100644
--- a/sweettooth/extensions/views.py
+++ b/sweettooth/extensions/views.py
@@ -83,8 +83,12 @@ def shell_download(request, uuid):
 
 @ajax_view
 def shell_update(request):
-    installed = json.loads(request.GET['installed'])
-    shell_version = request.GET['shell_version']
+    try:
+        installed = json.loads(request.GET['installed'])
+        shell_version = request.GET['shell_version']
+    except (KeyError, ValueError):
+        return {}
+
     operations = {}
 
     for uuid, meta in installed.iteritems():